KR20070102957A - Piping fixing structure - Google Patents

Abstract

A pipe fixing structure is provided to prevent vibration of a driving source from being transferred to a vehicle body without providing an additional part. A piping fixing structure includes a vehicle body(1), a suspension member(10) elastically supported by the vehicle body and supporting a suspension, and a pipe extended from a driving source elastically supported by the vehicle body, where the pipe is fixed to the suspension member via a fixing mechanism. The pipe connects the driving source and a functional part that is attached to the vehicle body separately from the driving source and is elastically supported by the vehicle body, and the pipe is divided into a functional part side and a driving source part. The divided pipes are connected to each other by a connecting member, and the connecting member is fixed to the suspension member.

Description

Piping Fixing Structure {PIPING FIXING STRUCTURE}

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the front part structure of the vehicle body to which the piping fixing structure which concerns on this invention was applied.

2 is a perspective view of the back side of the radiator;

3 is a perspective view of a fixing mechanism for fixing the intermediate pipe to the suspension member.

Figure 4 is a cross-sectional view showing the shape of engaging the bracket to the engaging portion of the fixing member.

Fig. 5 is a sectional view showing a state in which a fixing member provided with a bottom of a radiator hose on the radiator side is coupled to a bracket;

6 is a view showing a state in which a fixing member is installed in a bracket.

Fig. 7 is a view showing a state in which the lower portion of the radiator hose on the engine side is provided in the intermediate pipe in the state of Fig. 6;

Fig. 8 is a diagram showing a state in which the bottom of the radiator hose on the engine side is provided;

9 shows another example of the fixing mechanism.

<Explanation of symbols for main parts of the drawings>

1: body

2: engine

3: radiator

4A, 4B, 5, 6, and 9: vibration damping members

7: radiator hose top

8: lower radiator hose

10: suspension member

15: intermediate pipe (coupling member)

16: fixing member

16B: Fitted Recess

16C: Hook

16D: projection

17: bracket

17A: fitting convex

17B: engagement hole

F: Fixture

[Document 1] Japanese Patent Laid-Open No. 61-6020

[Document 2] Japanese Unexamined Patent Application Publication No. 10-329701

The present invention relates to a fixed structure of the pipe extending from the drive source.

A radiator hose (piping) is installed between the engine (drive source) and the radiator (functional parts) to circulate the coolant.

The lower part of the radiator hose may cause shaking due to vibration or pulsation of the engine (hereinafter, referred to as vibration, etc.), and when a large shaking occurs, the radiator hose interferes with surrounding components. In order to avoid this, conventionally, it was common to provide a constant space around a radiator hose.

However, if space is provided around a radiator hose in this way, it is not preferable at the point of effective use of space. In order to eliminate this, the method of fixing a radiator hose to a radiator core support (car body) and preventing a radiator hose from shaking and interfering with a peripheral component is proposed (for example, refer patent document 1).

By the way, when the radiator hose is fixed to the radiator core support as described above, the vibration of the engine is transmitted to the vehicle body through the radiator hose and the radiator core support, and further, the whole vehicle body is vibrated, thereby reducing the riding comfort.

Then, the method of absorbing the vibration of a radiator hose to an elastic body by fixing a radiator hose to a radiator core support through an elastic body is proposed (for example, refer patent document 2).

However, in the technique of the said patent document 2, when fixing a radiator hose to a radiator core support, there exists a problem that a manufacturing cost becomes high and requires an elastic body separately.

An object of the present invention is to provide a pipe fixing structure which can reliably suppress transmission of vibrations of a driving source or the like to a vehicle body without providing new parts.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, this invention is a vehicle body, the suspension member elastically supported with respect to the said vehicle body, and the piping extended from the drive source elastically supported by the said vehicle body is fixed to the said suspension member. It is the main feature that is fixed through.

Best Mode for Carrying Out the Invention Embodiments of the present invention will be described below with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the front part of the vehicle body to which the piping fixing structure which concerns on this invention was applied. As shown in FIG. 1, the engine (drive source) 2 is mounted in the front part of the vehicle body 1, and the radiator (functional component) 3 is arrange | positioned in front of the engine 2. As shown in FIG. The vehicle body 1 is provided with a suspension member 10 via a damping member 9. The lower part of the engine 2 is supported by the vehicle body 1 via 4 A of vibration damping members, and is supported by the suspension member 10 through 4 A of damping members, and the radiator 3 has the upper and lower sides. It is supported by the vehicle body 1 via the damping members 5 and 6. The suspension member 10 supports the suspension which is not shown in figure. In addition, one end of the radiator hose upper part 7 is connected to the upper part of the radiator 3, and one end of the radiator hose lower part 8 is connected to the lower part, respectively, and the other of these radiator hose upper parts 7 and the radiator hose lower part 8 is connected. The end is connected to the engine 2, respectively.

In this embodiment, the intermediate part of the radiator hose lower part 8 is fixed to the suspension member 10.

2 is a perspective view of the back side of the radiator 3. As shown in FIG. 2, the radiator 3 is fixed to the radiator core support 11, and a motor fan shroud 12 is attached to the rear surface of the radiator 3.

In addition, one end of the radiator hose 7 is connected to the radiator 3 by the alpha clamp 13, and the other end thereof is connected to the engine 2 (see FIG. 1) by the alpha clamp 14. . The radiator hose lower part 8 is divided into two parts from the middle part to the radiator hose lower part 8A of the radiator side and the radiator hose lower part 8B of the engine side so that the engine 2 and the radiator 3 may be installed separately, After the engine 2 and the radiator 3 are installed in the vehicle body 1, the two divided radiator hose lower portions 8A, 8B are connected to each other via an intermediate pipe (connection member) 15. One end of the radiator hose lower portion 8A is connected to the radiator 3 by the alpha clamp 16, and the other end thereof is connected to the intermediate pipe 15 by the alpha clamp 17. In addition, one end of the radiator hose lower portion 8B is connected to the intermediate pipe 15 by the alpha clamp 18, and the other end thereof is connected to the engine 2 by the alpha clamp 19. The intermediate pipe 15 is fixed to the suspension member 10 via the fixing mechanism F. As shown in FIG.

3 shows an example of a fixing mechanism F for fixing the intermediate pipe 15 to the suspension member 10. As this fixing mechanism F, in this embodiment, it is provided in the cylindrical fixing member 16 and suspension member 10 which cover the outer peripheral surface of the intermediate pipe 15, and have the engaging part 16A on the outer peripheral surface, The bracket 17 which can be engaged with the engaging portion 16A is provided.

4 is a cross-sectional view showing a state in which the bracket 17 is coupled to the engaging portion 16A of the fixing member 16. The engaging portion 16A of the fixing member 16 protrudes laterally to form a block shape (see Fig. 3), and a recessed portion (first engaging portion) 16B is formed at its center portion. A hook portion 16C is provided inside the fitting recess 16B, and a protrusion (second coupling portion) 16D is formed at the tip end of the hook portion 16C toward the outside. 16 C of hook parts are integrally formed in the main body of the fixing member 16, and when the projection 16D is pressed like arrow A, it will return to original (in the opposite direction to arrow A).

Moreover, as shown in FIG. 3, the bracket 17 is provided with the fitting convex part (1st to-be-engaged part) 17A which can be fitted to the fitting recessed part 16B of the fixing member 16. As shown in FIG. In this fitting convex portion 17A, a coupling hole (second to-be-engaged portion) 17B is formed.

In the above configuration, when the intermediate pipe 15 is fixed to the suspension member 10, as shown in FIG. 5, first, the fixing member 16 is attached to the intermediate pipe 15, and at the same time, the intermediate pipe 15 is fixed. One end of the part (15) is inserted into the radiator hose lower part 8A on the radiator side, and the outer peripheral surface of the end part of the radiator hose lower part 8A is fixed with the alpha clamp 17. As shown in FIG. Thereby, the intermediate pipe 15 can be provided in the edge part of 8 A of radiator hose lower parts.

On the other hand, the suspension member 10 is provided with the bracket 17 so that the fitting convex part 17A may face upward. Then, the fitting concave portion 16B of the fixing member 16 is positioned on the fitting convex portion 17A of the bracket 17, and the intermediate pipe 15 is pushed down together with the fixing member 16. The fitting convex portion 17A of the bracket 17 is inserted through the fitting concave portion 16B.

When the fixing member 16 is pushed down to a predetermined position, as shown in Fig. 6, the projection 16D of the hook portion 16C provided on the fixing member 16 is fitted with the fitting protrusion of the bracket 17. As shown in FIG. Engages with the engaging hole 17B formed in the part 17A. When the hook portion 16C is pressed as shown by arrow A (see Fig. 4), it has elasticity to return to its original state. When the projection 16D engages with the engagement hole 17B, the engagement state is strongly maintained. . As a result, the intermediate pipe 15 can be firmly fixed to the suspension member 10.

Next, the end of the radiator hose lower part 8B on the engine side is pushed into the other end of the intermediate pipe 15 as shown by arrow B of FIG. 8, the outer peripheral surface of the end part of the radiator hose lower part 8B is fixed with the alpha clamp 18. As shown in FIG. Thereby, the edge part of the radiator hose lower part 8B can be provided in the intermediate pipe 15. As shown in FIG.

In this manner, the intermediate portion of the radiator hose lower portion 8 can be fixed to the suspension member 10.

Next, the operation of the present embodiment will be described.

The suspension member 10 supports a suspension (not shown), supports the engine 2 via the damping member 4B, and is supported by the vehicle body 1 via the damping member 9. That is, it is provided in the vehicle body 1 in the state damped by the damping member 9. When the radiator hose lower part 8 is fixed to the suspension member 10, the radiator hose 8 vibrates due to the vibration of the engine, and the vibration is transmitted to the suspension member 10 so that the suspension member 10 vibrates. Even if it raises, the vibration is absorbed by the damping member 9 and is not transmitted to the vehicle body 1.

That is, by using the suspension member 10 already damped, it is possible to suppress the vibration of the engine 2 from being transmitted to the vehicle body 1 through the radiator hose 8 without providing new parts.

Moreover, the radiator hose lower part 8 is divided into the radiator hose lower part 8A extended from the radiator 3 provided in the vehicle body 1 separately from the engine 2, and the radiator hose lower part 8B extended from the engine. Since the divided and divided two-part radiator hose lower parts 8A and 8B are connected to each other through the intermediate pipe 15 fixed to the suspension member 10, the connection parts which connect the radiator hose lower parts 8A and 8B to each other And since the fixed part which fixes the radiator hose lower part 8 to the suspension member 10 can be set as one part, it is not necessary to provide a new part.

In addition, since the fitting concave portion 16B of the fixing member 16 and the fitting convex portion 17A of the bracket 17 are formed to be fitable, the fitting concave portion 17A is fitted into the fitting concave. Only through the insertion portion 16B, the positioning is performed in two directions other than the insertion penetration direction, and the hook portion 16C and the engagement hole 17B are engaged, so that the positioning in the insertion penetration direction is achieved. Is done. Thereby, since the fixing member 16 and the bracket 17 are fixed, the joining operation can be performed easily.

Moreover, since the radiator hose lower part 8 passes in the vicinity of the suspension member 10, the length of the fixing member 16 or the bracket 17 can be shortened, and manufacturing cost can be made low. . Moreover, since the suspension member 10 is arrange | positioned under the vehicle body, the operation | work which attaches the radiator hose lower part 8 to the suspension member 10 can be performed from below the engine room, and installation work can be performed easily.

9 shows another example of the fixing mechanism F. As shown in FIG. The radiator hose lower part 8 in FIG. 2 is a case where this example is applied.

In the fixing mechanism shown in Fig. 9, a cylindrical fixing member 21 covering the outer circumferential surface of the intermediate pipe 15 and having the engaging portion 21A on the outer circumferential surface and the suspension member 10 is provided, and the engaging portion ( The bracket 22 which can be attached to 21A) is provided.

Tongue 21B which is installed laterally in the center part is formed in the engagement part 21A of the fixing member 21, and is spaced in the direction of standing up with both side parts 21C which are not installed upright. (First engaging portion) S is made. A bolt hole 21D through which the stud bolt 20 is inserted is provided in both side portions 21C, and a lower part of the head (second coupling part) 20A of the stud bolt 20 protrudes from the bolt hole 21D. Is welded to.

In addition, the bracket 22 is provided with an insertion through portion (first to be joined) 22B that can be inserted into the gap S, and on both sides thereof, a U-shape through which the stud bolt 20 is inserted. 22A of notch holes (second to-be-engaged part) are formed.

Then, when the intermediate pipe 15 is fixed to the suspension member 10, the insertion through portion 22B of the bracket 22 is inserted through the gap S, so that the axial direction of the stud bolt 20 can be obtained. The positioning is made, and the cutout hole 22A of the bracket 22 penetrates through the head lower portion 20A of the stud bolt 20 to thereby position the stud bolt 20 in the radial direction. The coupling part 21A and the bracket 22 are engaged by screwing the nut 23 screwed into the stud bolt 20 from the bracket 22 side to the lower head 20A.

According to this embodiment, since the fixing member 21 and the bracket 22 are fixed by screwing together the stud bolt 20 and the nut 23, the radiator hose lower part 8 is attached to the suspension member 10. Can be firmly fixed.

As mentioned above, although the Example of this invention was described in detail by drawing, the said Example is only an illustration of this invention, This invention is not limited only to the structure of the said Example. It goes without saying that it is included in the present invention even if there are changes in the design, etc. within the scope not departing from the gist of the present invention.

For example, in the present embodiment, the drive source is an engine, the functional part is a radiator, and the piping is a radiator hose connecting the engine and the radiator. However, the present invention is not limited to this, but the drive source is a motor and the functional part is not limited thereto. May be used as an electric component utilizing electric power of a motor, and the pipe may be a coated tubular harness connecting the motor and the electric component.

According to the present invention, since the pipe is fixed to the suspension member that is elastically supported with respect to the vehicle body so as to support the suspension and not transmit vibration of the suspension to the vehicle body, it is transmitted through the pipe without providing a new component. It can suppress that vibration of a drive source, etc. are transmitted to a vehicle body.

Claims (4)

A vehicle body, a suspension member elastically supported against the vehicle body and supporting a suspension, and a pipe extending from a drive source elastically supported by the vehicle body are fixed to the suspension member via a fixing mechanism. . The method of claim 1, wherein the pipe is connected to the drive source and the functional part provided on the vehicle body separately from the drive source and elastically supported on the vehicle body, A piping fixing structure divided into a functional component side and a driving source side, wherein the divided pipes are connected to each other through a connecting member, and the connecting member is fixed to the suspension member. The said 1st engagement part of Claim 2 provided with the 1st engagement part provided in either one of the said connection member and the said suspension member, and the 1st engagement part provided in the other and engaging by penetrating through the said 1st engagement part. By inserting the first to-be-engaged portion into the first engaging portion, thereby engaging a direction other than the insertion penetration direction, One of the first engaging portion and the first to-be-engaged portion is provided with a second engaging portion, and the other is provided with a second to-be-engaged portion that can engage with the second engaging portion, and the second engaging portion and the first 2 A pipe fixing structure characterized in that at least the insertion direction is engaged by engaging a part to be joined. The pipe fixing according to claim 2 or 3, wherein the drive source is an engine, the functional part is a radiator, and the pipe is a radiator hose connecting the engine and the radiator and passing through the vicinity of the suspension member. rescue.

Images